VOA慢速英语:Why Some Worry About Trump’s Tweets

1. prevent vt.预防; 阻止; 阻碍
例句：This will not only prevent senescence but will also contribute to better fruit quality.
这不仅为了防止早衰，并有助于提高果品质量。
 
2. hack vt.乱劈，乱砍
例句：Can you hack it as a lumber jack?
你当伐木工人可以熬得住吗?

3. affect vt.影响; 假装; 感动
例句：Nicotine adversely affects the functioning of the heart and arteries
尼古丁会对心脏及动脉功能造成损害。

4. criticize vt.批评; 评论; 指责，非难
例句：His mother had rarely criticized him or any of her children
他母亲很少指责他或她的任何孩子。

5. communicate vt.传达，表达; 显示
例句：My natural mother has never communicated with me
我的亲生母亲从未和我联系过。

6. attack vt.攻击，进攻，抨击
例句：He publicly attacked the people who've been calling for secret ballot nominations
他公开抨击了那些主张用不记名投票方式确定任命人选的人。

7. complain vi.抱怨，诉苦; 申诉
例句: Miners have complained bitterly that the government did not fulfill their promises
矿工们愤愤不平地抱怨说政府没有履行诺言。

8. negotiate vi.谈判，协商，交涉
例句：We've decided to negotiate with the employers about our wage claims.
我们已经决定和雇主谈判关于我们的工资要求。